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How to Detect the End of CSS3 Transitions and Animations with jQuery?
How to Detect the End of CSS3 Transitions and Animations with jQuery?
Nov 04, 2024 am 06:46 AM
Harnessing CSS3 Transitions: Detecting Completion with jQuery
When animating elements using CSS3 transitions, it becomes necessary to know the precise moment they conclude to perform subsequent actions. Unlike jQuery animations, CSS3 transitions don't have built-in completion callbacks.
Capturing Transition End Events
To detect the end of a transition, jQuery offers the following script:
<code class="javascript">$("#someSelector").bind("transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd", function(){ ... });</code>
For animations, a similar approach can be used:
<code class="javascript">$("#someSelector").bind("animationend webkitAnimationEnd oAnimationEnd MSAnimationEnd", function(){ ... });</code>
By passing all prefixed event strings, this script will work across multiple browsers.
Using .one() for Single Fire
To ensure the event handler fires only once, you can use jQuery's .one() method instead of .bind():
<code class="javascript">$("#someSelector").one("transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd", function(){ ... });
$("#someSelector").one("animationend webkitAnimationEnd oAnimationEnd MSAnimationEnd", function(){ ... });</code>
Deprecation and Modern Approach
jQuery's .bind() method is now deprecated. The preferred approach is .on(), which works in conjunction with .off(). Here's an example:
<code class="javascript">$("#someSelector")
.on("animationend webkitAnimationEnd oAnimationEnd MSAnimationEnd",
function(e){
// do something here
$(this).off(e);
});</code>
This approach ensures that the callback function executes only once.
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